[1] Swanson, G. J. & Veldkamp, W. B. Diffractive optical elements for use in infrared systems. Opt. Eng. 28, 286605 (1989).
[2] Zou, X. Y., Wang, I. J. & Mandel, L. Induced coherence and indistinguishability in optical interference. Phys. Rev. Lett. 67, 318–321 (1991). doi: 10.1103/PhysRevLett.67.318
[3] Hudelist, F. et al. Quantum metrology with parametric amplifier-based photon correlation interferometers. Nat. Commun. 5, 3049 (2014). doi: 10.1038/ncomms4049
[4] Liu, Y. H. et al. Loss-tolerant quantum dense metrology with SU(1, 1) interferometer. Opt. Express 26, 27705–27715 (2018). doi: 10.1364/OE.26.027705
[5] Solntsev, A. S. et al. LiNbO3 waveguides for integrated SPDC spectroscopy. APL Photonics 3, 021301 (2018). doi: 10.1063/1.5009766
[6] Klyshko, D. N. Ramsey interference in two-photon parametric scattering. Sov. J. Exp. Theor. Phys. 104, 2676–2684 (1993).
[7] Paterova, A. V. & Krivitsky, L. A. Nonlinear interference in crystal superlattices. Light.: Sci. Appl. 9, 82 (2020). doi: 10.1038/s41377-020-0320-1